$OpenBSD: patch-Makefile_in,v 1.2 2014/10/13 19:10:44 sthen Exp $
--- Makefile.in.orig	Tue Dec 30 21:04:25 2008
+++ Makefile.in	Mon Oct 13 20:09:28 2014
@@ -9,7 +9,7 @@ prefix=@prefix@
 eprefix=@exec_prefix@
 #MORE_WARNINGS=-Weffc++
 WFLAGS=-Wall -W -Wshadow -Wpointer-arith -Wwrite-strings -pedantic -ffor-scope -Wcast-align -Wsign-compare -Wpointer-arith -Wwrite-strings -Wformat-security -Wswitch-enum -Winit-self $(MORE_WARNINGS)
-CFLAGS=-O2 @debug@ -DNDEBUG $(WFLAGS) $(MORECFLAGS)
+CFLAGS+=@debug@ -DNDEBUG $(WFLAGS) $(MORECFLAGS)
 CXX=@CXX@ $(CFLAGS)
 LINK=@CXX@
 THREAD_LFLAGS=@thread_ldflags@
